CN111627311B - Transmission demonstration device for teaching of mechanical courses - Google Patents
Transmission demonstration device for teaching of mechanical courses Download PDFInfo
- Publication number
- CN111627311B CN111627311B CN202010623339.2A CN202010623339A CN111627311B CN 111627311 B CN111627311 B CN 111627311B CN 202010623339 A CN202010623339 A CN 202010623339A CN 111627311 B CN111627311 B CN 111627311B
- Authority
- CN
- China
- Prior art keywords
- fixedly connected
- plate
- sliding
- supporting plate
- belt
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000005540 biological transmission Effects 0.000 title claims abstract description 47
- 230000001105 regulatory effect Effects 0.000 claims description 10
- 238000000034 method Methods 0.000 abstract description 12
- 230000009347 mechanical transmission Effects 0.000 abstract description 10
- 235000008331 Pinus X rigitaeda Nutrition 0.000 abstract 1
- 235000011613 Pinus brutia Nutrition 0.000 abstract 1
- 241000018646 Pinus brutia Species 0.000 abstract 1
- 230000002146 bilateral effect Effects 0.000 abstract 1
- 238000009434 installation Methods 0.000 abstract 1
- 230000001737 promoting effect Effects 0.000 abstract 1
- 230000008569 process Effects 0.000 description 9
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B25/00—Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes
- G09B25/02—Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes of industrial processes; of machinery
Landscapes
- Engineering & Computer Science (AREA)
- Business, Economics & Management (AREA)
- Physics & Mathematics (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Transmission Devices (AREA)
Abstract
The utility model provides a machinery course teaching transmission presentation device, includes the backup pad, and bilateral symmetry's through-hole is seted up respectively to the upper and lower both sides of backup pad front side, rotates the installation pivot through the bearing in the through-hole respectively, and the coaxial belt pulley of fixed mounting is distinguished to the front end of pivot, and two adjacent belt pulleys from top to bottom pass through the V belt transmission and connect. Can make the student participate in the in-process of mechanical transmission demonstration, utilize the characteristics that belt drive tension damage bearing, cross pine easily skidded simultaneously, increase the competition mode, can make the in-process of the better input mechanical transmission demonstration of student, the belt elasticity degree is to driven influence in the memory belt drive that simultaneously can be more profound increases the interest of demonstration, can satisfy the market demand, is fit for promoting.
Description
Technical Field
The invention belongs to the field of demonstration devices for mechanical courses, and particularly relates to a mechanical course teaching transmission demonstration device.
Background
Mechanical transmission presentation device can more audio-visual expression drive mechanism, helps student's understanding and memory, but current transmission presentation device function singleness, demonstration that only can be boring, the student can't participate in the demonstration in-process, makes the student lose interest very easily, and then can't reach the purpose that helps the student to learn memory mechanical transmission structure, can't satisfy actual demand, so, we have invented a machinery course teaching drive presentation device.
Disclosure of Invention
The invention provides a mechanical course teaching transmission demonstration device, which is used for solving the defects in the prior art.
The invention is realized by the following technical scheme:
a mechanical course teaching transmission demonstration device comprises a support plate, wherein a pair of through holes which are bilaterally symmetrical are respectively formed in the upper side and the lower side of the front side of the support plate, a rotating shaft is rotatably installed in each through hole through a bearing, coaxial belt pulleys are respectively and fixedly installed at the front end of the rotating shaft, the two belt pulleys which are adjacent from top to bottom are connected through a V-belt in a transmission manner, two tension belt pulleys which are bilaterally symmetrical are respectively arranged on the inner sides of the V-belts, the outer peripheries of the tension belt pulleys are respectively in contact fit with the inner peripheries of the corresponding V-belts, a strip-shaped through groove is formed in the middle of the front side of the support plate, a sliding plate which can only move left and right is movably installed in the strip-shaped through groove, a driving device which can drive the sliding plate to reciprocate left and right is fixedly installed on the rear side of the support plate, a sliding groove is formed in the front side of the sliding plate, two sliding blocks which can only slide left and right slide are installed in the sliding manner, and one side of each sliding block is connected with the inner wall corresponding to the sliding groove through an elastic piece, the rear sides of the two tension belt wheels on the inner side are respectively and rotatably connected with the front sides of the corresponding sliding blocks through bearings, the rear sides of the two tension belt wheels on the outer side are respectively and rotatably connected with the front sides of adjusting plates through bearings, the adjusting plates and the supporting plates are respectively and fixedly connected with adjusting devices, the rear ends of the rotating shafts on the lower side are respectively and fixedly connected with the front ends of output shafts of electromagnetic clutches, the electromagnetic clutches are respectively and fixedly connected with the supporting plates, the rear ends of input shafts of the electromagnetic clutches are respectively and fixedly provided with coaxial first gears, the first gears are mutually meshed and matched, the rear sides of the supporting plates are fixedly provided with motors, the rear ends of the rotating shafts of the motors are fixedly provided with second gears, and the second gears are meshed and matched with the first gears on one side; the upper portion of backup pad front side is equipped with the movable plate, the top side of movable plate fixed connection several lower extreme of first spring beam, the upper end of first spring beam respectively with backup pad fixed connection, the outer end of second spring beam is fixed connection respectively at both ends about the movable plate bottom side, the outer end of bar rack is fixed connection respectively in the inner of second spring beam, the pivot of upside is connected through transmission respectively with the bar rack that corresponds, be equipped with two first contact switch with backup pad fixed connection between the bar rack, the inner of bar rack can respectively with the first contact switch contact cooperation that corresponds, first contact switch establishes ties with the motor power supply line, fixed mounting second contact switch respectively at both sides about the spout, the slider can respectively with the second contact switch contact cooperation that corresponds, second contact switch establishes ties with the power supply line of corresponding electromagnetic clutch respectively.
As above, a mechanical course teaching transmission presentation device, drive arrangement include reciprocal lead screw pair, the both ends of reciprocal lead screw pair lead screw periphery are connected with the backup pad rotation through the axle bed respectively, the one end fixed connection driving motor pivot of reciprocal lead screw pair lead screw one end, driving motor and backup pad fixed connection, the front side of the vice screw of reciprocal lead screw and the rear side fixed connection of slide.
As above a mechanical course teaching transmission presentation device, adjusting device include the screw rod, the inner of connecting screw rod is rotated through the bearing respectively to one side that two regulating plates carried on the back mutually, the periphery of screw rod is threaded mounting nut respectively, the nut respectively with backup pad fixed connection, the outer end of screw rod is fixed mounting hand wheel respectively, the plane of regulating plate rear side and the front side sliding contact cooperation of backup pad.
As above, a machinery course teaching transmission presentation device, transmission include the worm, the coaxial worm of fixed mounting respectively is gone up to the front end of the pivot periphery of side, one side of worm meshes the cooperation respectively and is equipped with the worm wheel, the worm wheel passes through the support rotation with the backup pad respectively and is connected, the top side of worm wheel is the bottom side of coaxial first helical gear of fixed connection respectively, one side of first helical gear meshes the cooperation respectively and is equipped with the second helical gear, the rear side of second helical gear is the front side of coaxial pinion of fixed connection respectively, the rear side of pinion passes through the bearing rotation with the front side of backup pad respectively and is connected, the pinion meshes the cooperation with corresponding bar rack respectively.
As above a mechanical course teaching transmission presentation device, the top side fixed connection montant of movable plate the lower extreme, the first sliding sleeve of periphery slip suit of montant, first sliding sleeve and backup pad fixed connection, the articulated one end of connecting the depression bar in the upper end of montant, the periphery slip suit second sliding sleeve of depression bar, the articulated upper end of linking bridge of bottom side of second sliding sleeve, the lower extreme and the backup pad fixed connection of bracing piece.
The mechanical course teaching transmission demonstration device is characterized in that the supporting plate is a transparent plate, and the bottom side of the supporting plate is fixedly connected with the top side of the base.
The invention has the advantages that: the belt transmission demonstration device is simple in structure and ingenious in conception, can enable students to participate in the mechanical transmission demonstration process, simultaneously utilizes the characteristics that the belt transmission is too tight to damage a bearing and too loose and easy to slip, increases the competition mode, enables the students to be better put into the mechanical transmission demonstration process, can also deeply memorize the influence of the tightness degree of the belt in the belt transmission on the transmission, increases the demonstration interest, can meet the market demand, and is suitable for popularization. When the invention is used, the motor and the driving device are respectively electrified, the driving device drives the sliding plate to reciprocate left and right, when the motor rotates in the forward direction, the bar-shaped racks move in the reverse direction, the distance between the bar-shaped racks is enabled to be positioned at the initial position to the maximum, then the motor rotates in the reverse direction, so that the bar-shaped racks move in opposite directions, under the condition of no external interference, the inner ends of the bar-shaped racks can almost simultaneously contact and cooperate with the corresponding first contact switches, and the motor stops running when the power is cut off; the sliding plate is continuously driven to reciprocate left and right by the driving device when being electrified, so that the sliding plate drives the two tension belt wheels on the inner side to move left or right simultaneously through the elastic part and the sliding block, when the tension belt wheel on the inner side moves left, the tension of the V-belt on the left side is reduced, the friction between the inner side of the V-belt on the left side and the belt wheel on the upper side is reduced, the slipping phenomenon occurs, the opposite movement speed of the strip racks on the left side is reduced, the tension of the V-belt on the right side is increased, the opposite movement speed of the strip racks on the right side is unchanged, on the contrary, when the tension belt wheel on the inner side moves right, the opposite movement speed of the strip racks on the left side is unchanged, the opposite movement speed of the strip racks on the right side is reduced, in the process, the amount of compression of the elastic part is small, and the sliding block is not in contact with the corresponding second contact switch; in order to enable students to participate in the mechanical transmission demonstration process, the two students respectively control the adjusting plate to move left and right through the adjusting device, when the distance between the adjusting plate and the sliding plate is unchanged, the tension of the triangular belt on the corresponding side is unchanged, so that the bar-shaped racks on the side move oppositely under the condition of unchanged speed, the ability of the students for controlling the adjusting plate to move left and right is tested, when the bar-shaped racks on one side are in contact fit with the first contact switch, the motor is powered off to stop rotating, and at the moment, the students on the side in contact fit with the first contact switch win the game; after the movable plate is adjusted to move outwards through the adjusting device, the maximum distance between the tension belt wheel on the inner side and the tension belt wheel on the outer side is increased, the amount of the compressed elastic part is increased, when the amount of the compressed elastic part is enough to enable the sliding block to be in contact fit with the corresponding second contact switch, the electromagnetic clutch on the side is powered off, the rotating shaft on the lower side stops rotating, the tension of the V-belt is prevented from being increased continuously, the position of the adjusting plate is adjusted timely, the sliding block is separated from the corresponding second contact switch, the corresponding electromagnetic clutch is powered on, the rotating shaft on the lower side of the side is recovered to rotate continuously, and damage to the rotating shaft due to the fact that the tension is too large is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention; FIG. 2 is a view in the direction A of FIG. 1; FIG. 3 is a view from the direction B of FIG. 1; FIG. 4 is a block diagram of the motor in circuit connection with the first contact switch; FIG. 5 is a block diagram of the electromagnetic clutch in circuit connection with the second contact switch; FIG. 6 is an enlarged view of a portion I of FIG. 1; fig. 7 is a partial enlarged view of ii of fig. 1.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
A mechanical course teaching transmission demonstration device comprises a supporting plate 1, wherein a pair of through holes 2 which are bilaterally symmetrical are respectively formed in the upper side and the lower side of the front side of the supporting plate 1, a rotating shaft 3 is rotatably installed in each through hole 2 through a bearing, coaxial belt pulleys 4 are respectively and fixedly installed at the front end of the rotating shaft 3, two belt pulleys 4 which are vertically adjacent are in transmission connection through a V-belt 5, two tension belt wheels 6 which are bilaterally symmetrical are respectively arranged on the inner sides of the V-belt 5, the peripheries of the tension belt wheels 6 are respectively in contact fit with the inner peripheries of the corresponding V-belts 5, a strip-shaped through groove 7 is formed in the middle of the front side of the supporting plate 1, a sliding plate 8 which can only move left and right is movably installed in the strip-shaped through groove 7, a driving device which can drive the sliding plate 8 to reciprocate left and right is fixedly installed on the rear side of the supporting plate 1, a sliding groove 9 is formed in the front side of the sliding plate 8, and two sliding blocks 10 which can only slide left and right slide are installed in the sliding groove 9, the opposite side of the sliding block 10 is connected with the inner wall corresponding to the sliding groove 9 through an elastic part 11, the elastic part 11 is a small spring rod, one end of the small spring rod is fixedly connected with the sliding block 10, the other end of the small spring rod is fixedly connected with the sliding groove 9, the rear sides of the two tension belt wheels 6 at the inner side are respectively and rotatably connected with the front sides of the corresponding sliding blocks 10 through bearings, the rear sides of the two tension belt wheels 6 at the outer side are respectively and rotatably connected with the front sides of an adjusting plate 12 through bearings, the adjusting plate 12 is respectively and rotatably connected with the supporting plate 1 through an adjusting device, the rear end of the rotating shaft 3 at the lower side is respectively and fixedly connected with the front end of an output shaft of an electromagnetic clutch 13, the electromagnetic clutch 13 is respectively and fixedly connected with the supporting plate 1, the rear end of an input shaft of the electromagnetic clutch 13 is respectively and fixedly provided with a coaxial first gear 14, the first gear 14 is mutually meshed and matched, the rear side of the supporting plate 1 is fixedly provided with a motor 15, the rear end of the rotating shaft of the motor 15 is fixedly provided with a second gear 16, the second gear 16 is meshed with the first gear 14 on one side; a movable plate 17 is arranged on the upper part of the front side of the supporting plate 1, the top side of the movable plate 17 is fixedly connected with the lower ends of a plurality of first spring rods 18, the upper ends of the first spring rods 18 are respectively fixedly connected with the supporting plate 1, the left and right ends of the bottom side of the movable plate 17 are respectively fixedly connected with the outer ends of second spring rods 19, the inner ends of the second spring rods 19 are respectively fixedly connected with the outer ends of strip-shaped racks 20, the rotating shaft 3 on the upper side is respectively connected with the corresponding strip-shaped racks 20 through a transmission device, two first contact switches 21 fixedly connected with the supporting plate 1 are arranged between the strip-shaped racks 20, the inner ends of the strip-shaped racks 20 can be respectively in contact fit with the corresponding first contact switches 21, the first contact switches 21 are connected with a power supply line of the motor 15 in series, the left and right sides of the sliding chute 9 are respectively fixedly provided with second contact switches 22, and the sliding blocks 10 can be respectively in contact fit with the corresponding second contact switches 22, the second contact switches 22 are respectively connected in series with the power supply lines of the corresponding electromagnetic clutches 13, and the first contact switches 21 and the second contact switches 22 are both normally closed switches, i.e., are in a conducting state when in non-contact matching. The belt transmission demonstration device is simple in structure and ingenious in conception, can enable students to participate in the mechanical transmission demonstration process, simultaneously utilizes the characteristics that the belt transmission is too tight to damage a bearing and too loose and easy to slip, increases the competition mode, enables the students to be better put into the mechanical transmission demonstration process, can also deeply memorize the influence of the tightness degree of the belt in the belt transmission on the transmission, increases the demonstration interest, can meet the market demand, and is suitable for popularization. When the invention is used, the motor 15 and the driving device are respectively electrified, the driving device drives the sliding plate 8 to reciprocate left and right, when the motor 15 rotates forwards, the bar-shaped racks 20 move backwards, the distance between the bar-shaped racks 20 is positioned at the initial position to the maximum, then the motor 15 rotates reversely, so that the bar-shaped racks 20 move oppositely, under the condition of no external interference, the inner ends of the bar-shaped racks 20 can be almost simultaneously contacted and matched with the corresponding first contact switches 21, and the motor 15 stops running after power failure; because the driving device continuously drives the sliding plate 8 to reciprocate left and right when being electrified, the sliding plate 8 drives the two tension belt wheels 6 at the inner side to move left or right simultaneously through the elastic piece 11 and the slide block 10, when the tension belt wheel 6 at the inner side moves left, the tension of the V-belt 5 on the left side is reduced, the frictional force between the inner side of the V-belt 5 on the left side and the pulley 4 on the upper side is reduced, so that the slipping phenomenon occurs, the speed of the opposite movement of the left strip-shaped rack 20 is reduced, simultaneously, the tension of the right V-belt 5 is increased, the speed of the opposite movement of the right strip-shaped rack 20 is not changed, on the contrary, when the tension belt wheel 6 at the inner side moves rightwards, the speed of the opposite movement of the left strip-shaped racks 20 is unchanged, the speed of the opposite movement of the right strip-shaped racks 20 is reduced, in the process, the amount of compression of the elastic element 11 is small, and the sliding block 10 is not in contact fit with the corresponding second contact switch 22; in order to enable students to participate in the mechanical transmission demonstration process, two students respectively control the adjusting plate 12 to move left and right through the adjusting device, when the distance between the adjusting plate 12 and the sliding plate 8 is unchanged, the tension of the V-belt 5 on the corresponding side is unchanged, so that the bar-shaped racks 20 on the side move oppositely under the condition of unchanged speed, the ability of the students to control the adjusting plate 12 to move left and right is tested, when the bar-shaped racks 20 on one side are in contact fit with the first contact switch 21, the motor 15 is powered off and stops rotating, and at the moment, the students on one side in contact fit with the first contact switch 21 win; after the moving plate 12 is adjusted by the adjusting device to move outwards, the maximum distance between the inner tension pulley 6 and the outer tension pulley 6 is increased, the amount of the compressed elastic element 11 is increased, when the amount of the compressed elastic element 11 is enough to enable the slider 10 to be in contact fit with the corresponding second contact switch 22, the electromagnetic clutch 13 on the side is powered off, the rotating shaft 3 on the lower side stops rotating, so that the tension of the V-belt 5 is prevented from being increased continuously, the position of the adjusting plate 12 is adjusted timely, the slider 10 is separated from the corresponding second contact switch 22, the corresponding electromagnetic clutch 13 is powered on, the rotating shaft 3 on the lower side on the side is recovered to rotate continuously, and the damage to the rotating shaft 13 caused by overlarge tension is reduced.
Specifically, as shown in the figure, the driving device according to the present embodiment includes a reciprocating screw pair 30, two ends of the periphery of a screw of the reciprocating screw pair 30 are rotatably connected to the support plate 1 through a shaft seat 31, one end of a screw of the reciprocating screw pair 30 is fixedly connected to one end of a rotating shaft of a driving motor 32, the driving motor 32 is fixedly connected to the support plate 1, and the front side of a screw of the reciprocating screw pair 30 is fixedly connected to the rear side of the sliding plate 8. When the driving motor 32 rotates, the sliding plate 8 can only move left and right in the strip-shaped through groove 7, so that the sliding plate 8 limits the screw of the reciprocating screw pair 30 to rotate along with the screw, the screw of the reciprocating screw pair 30 drives the sliding plate 8 to move left and right in a reciprocating mode, meanwhile, a screw and screw transmission mechanism is added, and transmission demonstration types are enriched.
Specifically, as shown in the figure, the adjusting device described in this embodiment includes screw rod 40, and the inner that connects screw rod 40 is rotated through the bearing respectively to two one sides that regulating plate 12 carried on the back mutually, and the periphery of screw rod 40 is threaded mounting nut 41 respectively, nut 41 respectively with backup pad 1 fixed connection, the outer end of screw rod 40 is fixed mounting hand wheel 42 respectively, the plane of regulating plate 12 rear side and the front side sliding contact cooperation of backup pad 1. It is more laborsaving to rotate screw rod 40 through hand wheel 42, and when rotating screw rod 40, screw rod 40 drives regulating plate 12 and removes, and the plane of regulating plate 12 rear side and the front side sliding contact cooperation of backup pad 1 to avoid regulating plate 12 to rotate along with screw rod 40, regulating plate 12 drives and removes about corresponding tension band pulley 6.
Further, as shown in the figure, the transmission device according to the embodiment includes a worm 50, coaxial worms 50 are respectively fixedly installed at the front end of the periphery of the upper rotating shaft 3, worm wheels 51 are respectively engaged and matched at one side of the worm 50, the worm wheels 51 are respectively rotatably connected with the support plate 1 through supports 52, the supports 52 are L-shaped rods, the upper ends of the supports 52 are respectively connected with the middle of the bottom side of the corresponding worm wheel 51 through bearings, the rear ends of the supports 52 are respectively fixedly connected with the support plate 1, the top sides of the worm wheels 51 are respectively fixedly connected with the bottom side of the coaxial first bevel gears 53, one side of the first bevel gears 53 is respectively engaged and matched with a second bevel gear 54, the rear sides of the second bevel gears 54 are respectively fixedly connected with the front side of the coaxial pinion 55, the rear sides of the pinion gears 55 are respectively rotatably connected with the front side of the support plate 1 through bearings, and the pinion gears 55 are respectively engaged and matched with the corresponding strip-shaped racks 20. When the rotating shaft 3 on the upper side rotates, the worm 50 is driven to rotate, the worm 50 drives the worm wheel 51 and the first bevel gear 53 to rotate, the first bevel gear 53 drives the second bevel gear 54 to rotate, and the second bevel gear 54 drives the strip-shaped rack 20 to move back to back and move towards each other; increase worm gear transmission, helical gear meshing transmission, rack and pinion transmission, further increase the type of transmission demonstration, utilize worm gear driven auto-lock simultaneously, can avoid motor 15 outage back bar rack 20 to reset under the elastic tension effect of second spring beam 19, the worm gear structure can slow down simultaneously, reduces the speed that bar rack 20 removed, extension competition process increases and experiences the sense.
Furthermore, as shown in the drawings, the top side of the moving plate 17 according to the embodiment is fixedly connected to the lower end of the vertical rod 60, the periphery of the vertical rod 60 is slidably sleeved with the first sliding sleeve 61, the first sliding sleeve 61 is fixedly connected to the support plate 1, the upper end of the vertical rod 60 is hinged to one end of the pressing rod 62, the periphery of the pressing rod 62 is slidably sleeved with the second sliding sleeve 63, the bottom side of the second sliding sleeve 63 is hinged to the upper end of the support rod 64, and the lower end of the support rod 64 is fixedly connected to the support plate 1. When the other end of the pressing rod 62 is pressed downwards, the pressing rod 62 can slide in the second sliding sleeve 63, and a lever structure is formed by taking the upper end of the supporting rod 64 as a fulcrum, so that the vertical rod 60 and the moving plate 17 are lifted upwards by one end of the pressing rod 62, the moving plate 17 is lifted more labor-saving, and meanwhile, demonstration of connecting rod transmission is increased.
Further, as shown in the figure, the supporting plate 1 of the present embodiment is a transparent plate, and the bottom side of the supporting plate 1 is fixedly connected to the top side of the base 70. The base 70 is convenient for the support plate 1 to be placed, and the support plate 1 is a transparent plate, so that the structure of worm and gear transmission, bevel gear meshing transmission and gear rack transmission can be observed conveniently.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (6)
1. The utility model provides a mechanical course teaching transmission presentation device which characterized in that: comprises a supporting plate (1), a pair of through holes (2) which are bilaterally symmetrical are respectively arranged at the upper side and the lower side of the front side of the supporting plate (1), a rotating shaft (3) is respectively rotatably arranged in the through holes (2) through bearings, coaxial belt pulleys (4) are respectively and fixedly arranged at the front end of the rotating shaft (3), two belt pulleys (4) which are vertically adjacent are in transmission connection through a V-belt (5), two tension belt pulleys (6) which are bilaterally symmetrical are respectively arranged at the inner side of the V-belt (5), the peripheries of the tension belt pulleys (6) are respectively in contact fit with the inner peripheries of the corresponding V-belt (5), a strip-shaped through groove (7) is arranged at the middle part of the front side of the supporting plate (1), a sliding plate (8) which can only move left and right is movably arranged in the strip-shaped through groove (7), a driving device which can drive the sliding plate (8) to reciprocate left and right is fixedly arranged at the rear side of the supporting plate (1), a sliding groove (9) is arranged at the front side of the sliding plate (8), two slide blocks (10) which can only slide left and right are arranged in the chute (9) in a sliding way, one side of each slide block (10) which is back to back is connected with the corresponding inner wall of the chute (9) through an elastic part (11), the rear sides of the two tension belt wheels (6) at the inner side are respectively and rotationally connected with the front sides of the corresponding slide blocks (10) through bearings, the rear sides of the two tension belt wheels (6) at the outer side are respectively and rotationally connected with the front sides of adjusting plates (12) through bearings, the adjusting plates (12) are respectively and rotationally connected with the supporting plate (1) through adjusting devices, the rear ends of the rotating shafts (3) at the lower side are respectively and fixedly connected with the front ends of output shafts of electromagnetic clutches (13), the electromagnetic clutches (13) are respectively and fixedly connected with the supporting plate (1), coaxial first gears (14) are respectively and fixedly arranged at the rear ends of the input shafts of the electromagnetic clutches (13), the first gears (14) are mutually meshed and matched, and a motor (15) is fixedly arranged at the rear side of the supporting plate (1), a second gear (16) is fixedly arranged at the rear end of the rotating shaft of the motor (15), and the second gear (16) is meshed and matched with the first gear (14) on one side; a movable plate (17) is arranged on the upper part of the front side of the support plate (1), the top side of the movable plate (17) is fixedly connected with the lower ends of a plurality of first spring rods (18), the upper ends of the first spring rods (18) are respectively fixedly connected with the support plate (1), the left and right ends of the bottom side of the movable plate (17) are respectively fixedly connected with the outer ends of second spring rods (19), the inner ends of the second spring rods (19) are respectively fixedly connected with the outer ends of strip-shaped racks (20), the rotating shaft (3) on the upper side is respectively connected with the corresponding strip-shaped racks (20) through a transmission device, two first contact switches (21) fixedly connected with the support plate (1) are arranged between the strip-shaped racks (20), the inner ends of the strip-shaped racks (20) can be respectively in contact fit with the corresponding first contact switches (21), the first contact switches (21) are connected with a power supply line of a motor (15) in series, when the strip-shaped racks (20) are in contact fit with the corresponding first contact switches (21), the motor (15) connected with the first contact switch (21) in series is powered off, the second contact switch (22) is fixedly mounted on the left side and the right side of the sliding groove (9) respectively, the sliding block (10) can be in contact fit with the corresponding second contact switch (22) respectively, the second contact switch (22) is connected with a power supply line of the corresponding electromagnetic clutch (13) in series respectively, and when the sliding block (10) is in contact fit with the corresponding second contact switch (22), the electromagnetic clutch (13) connected with the second contact switch (22) in series is powered off.
2. The mechanical lesson teaching transmission demonstration device of claim 1 further comprising: the driving device comprises a reciprocating screw pair (30), two ends of the periphery of a screw of the reciprocating screw pair (30) are rotatably connected with the supporting plate (1) through a shaft seat (31) respectively, one end of the screw of the reciprocating screw pair (30) is fixedly connected with one end of a rotating shaft of a driving motor (32), the driving motor (32) is fixedly connected with the supporting plate (1), and the front side of a screw of the reciprocating screw pair (30) is fixedly connected with the rear side of the sliding plate (8).
3. The mechanical lesson teaching transmission demonstration device of claim 1 further comprising: adjusting device include screw rod (40), the inner of connecting screw rod (40) is rotated through the bearing respectively to one side that two regulating plates (12) carried on the back mutually, the periphery of screw rod (40) is threaded mounting nut (41) respectively, nut (41) respectively with backup pad (1) fixed connection, the outer end of screw rod (40) is fixed mounting hand wheel (42) respectively, the plane of regulating plate (12) rear side and the preceding side sliding contact cooperation of backup pad (1).
4. The mechanical lesson teaching transmission demonstration device of claim 1 further comprising: the transmission device comprises a worm (50), coaxial worms (50) are fixedly mounted at the front ends of the peripheries of rotating shafts (3) on the upper side respectively, worm wheels (51) are arranged on one sides of the worms (50) in a meshed and matched mode respectively, the worm wheels (51) are rotatably connected with the supporting plate (1) through supports (52) respectively, the top sides of the worm wheels (51) are fixedly connected with the bottom sides of first coaxial bevel gears (53) respectively, second bevel gears (54) are arranged on one sides of the first bevel gears (53) in a meshed and matched mode respectively, the rear sides of the second bevel gears (54) are fixedly connected with the front sides of coaxial pinions (55) respectively, the rear sides of the pinions (55) are rotatably connected with the front sides of the supporting plate (1) through bearings respectively, and the pinions (55) are meshed and matched with corresponding strip-shaped racks (20) respectively.
5. The mechanical lesson teaching transmission demonstration device of claim 1 further comprising: the movable plate is characterized in that the top side of the movable plate (17) is fixedly connected with the lower end of a vertical rod (60), the periphery of the vertical rod (60) is sleeved with a first sliding sleeve (61) in a sliding mode, the first sliding sleeve (61) is fixedly connected with the supporting plate (1), the upper end of the vertical rod (60) is hinged with one end of a pressing rod (62), the periphery of the pressing rod (62) is sleeved with a second sliding sleeve (63) in a sliding mode, the bottom side of the second sliding sleeve (63) is hinged with the upper end of a supporting rod (64), and the lower end of the supporting rod (64) is fixedly connected with the supporting plate (1).
6. The mechanical lesson teaching transmission demonstration device of claim 4 further comprising: the supporting plate (1) is a transparent plate, and the bottom side of the supporting plate (1) is fixedly connected with the top side of the base (70).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010623339.2A CN111627311B (en) | 2020-06-30 | 2020-06-30 | Transmission demonstration device for teaching of mechanical courses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010623339.2A CN111627311B (en) | 2020-06-30 | 2020-06-30 | Transmission demonstration device for teaching of mechanical courses |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111627311A CN111627311A (en) | 2020-09-04 |
| CN111627311B true CN111627311B (en) | 2022-01-11 |
Family
ID=72261252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010623339.2A Active CN111627311B (en) | 2020-06-30 | 2020-06-30 | Transmission demonstration device for teaching of mechanical courses |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111627311B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113487955A (en) * | 2021-06-02 | 2021-10-08 | 金超焕 | Multifunctional mechanical motion display teaching aid |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104992612B (en) * | 2015-08-03 | 2017-12-12 | 太原理工大学 | V belt translation characteristic parameter teaching mode demonstrator |
| CN206058754U (en) * | 2016-08-04 | 2017-03-29 | 黄河科技学院 | A kind of rote teaching exhibiting device |
| CN208284133U (en) * | 2017-11-27 | 2018-12-25 | 中国石油大学(北京) | Transmission mechanism integrated demonstration experimental device |
| CN208548097U (en) * | 2018-01-19 | 2019-02-26 | 中国石油大学胜利学院 | A kind of theory of mechanics experiment porch |
| CN209133058U (en) * | 2018-08-28 | 2019-07-19 | 河池学院 | A kind of Environment Design simulation sand table |
| CN209373866U (en) * | 2018-09-25 | 2019-09-10 | 杨值权 | A kind of Physical Experiment transmission mechanism apparatus for demonstrating |
| CN210574632U (en) * | 2019-06-21 | 2020-05-19 | 河南水利与环境职业学院 | Demonstration device capable of simulating multiple mechanical transmissions |
-
2020
- 2020-06-30 CN CN202010623339.2A patent/CN111627311B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN111627311A (en) | 2020-09-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208837462U (en) | A kind of rotary workmanship displaying device | |
| CN111627311B (en) | Transmission demonstration device for teaching of mechanical courses | |
| CN206213694U (en) | The comprehensive display type clock and watch of one kind sale | |
| CN2062479U (en) | Electric mechanical driving combined teaching tools | |
| CN204497081U (en) | A kind of isolator operation controlling organization | |
| CN112133140B (en) | Sociology demonstration teaching device with interactive structure of teaching | |
| CN218767269U (en) | Detection device is used in socket production | |
| CN2421179Y (en) | Automatic device for wiping blackboard | |
| CN109176443B (en) | General assembly training platform | |
| CN216291526U (en) | Dustproof light control console | |
| CN209729270U (en) | A kind of displaying model for pedagogical studies | |
| CN206194272U (en) | Real standard platform of machinery with gearbox | |
| CN214119536U (en) | Display setting for middle-position physical teaching | |
| CN210095011U (en) | Multi-screen opening device for extended desktop | |
| CN208047868U (en) | A kind of preparation of specimen's platform for bamboo | |
| CN221780296U (en) | Multifunctional display device for household education | |
| CN209265826U (en) | Machine driving instruments used for education | |
| CN209433696U (en) | The feeding production line of teaching | |
| CN112406950A (en) | Ground rail crack detection device | |
| CN112461677A (en) | Automatic change electrical equipment detection device | |
| CN214504667U (en) | Electrical control and PLC application training device | |
| CN215182598U (en) | Think political affairs presentation device for teaching | |
| CN207846357U (en) | A kind of water conservancy and hydropower gate lifting device | |
| CN215577138U (en) | Infant's art education demonstration board | |
| CN207792184U (en) | A kind of packing machine paperboard propeller carriage |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221222 Address after: 230000 b-1018, Woye Garden commercial office building, 81 Ganquan Road, Shushan District, Hefei City, Anhui Province Patentee after: HEFEI WISDOM DRAGON MACHINERY DESIGN Co.,Ltd. Address before: 325000 Wenzhou City National University Science Park incubator, No. 38 Dongfang South Road, Ouhai Economic Development Zone, Wenzhou, Zhejiang Patentee before: WENZHOU VOCATIONAL & TECHNICAL College |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230105 Address after: 030,600 East Building, Floor 1, No. 5160 Jingxi Avenue, Huitong Industrial Park, Jinzhong Development Zone, Shanxi Demonstration Zone, Jinzhong City, Shanxi Province Patentee after: SHANXI NINGZHI TECHNOLOGY Co.,Ltd. Address before: 230000 b-1018, Woye Garden commercial office building, 81 Ganquan Road, Shushan District, Hefei City, Anhui Province Patentee before: HEFEI WISDOM DRAGON MACHINERY DESIGN Co.,Ltd. |